I got the same advice from the folks at W4S. Unless you need the power of the SX-1000's the mAMPs are a better choice due to overall refinements in sound quality. The mAMPs are based on a newer ICE module.
On a slight tangential note: If you have an all digital system, you could eliminate the analog preamp. I am running a W4S DAC-2 direct to a pair of mAMPs, using the DAC's digital volume control. To my ears this sounds more direct and superior to using an excellent analog preamp like the W4S STP-SE.
On a slight tangential note: If you have an all digital system, you could eliminate the analog preamp. I am running a W4S DAC-2 direct to a pair of mAMPs, using the DAC's digital volume control. To my ears this sounds more direct and superior to using an excellent analog preamp like the W4S STP-SE.